Steam-engine.



No. 724,816. PATENTED APR. 7, 1903.

- H; G. GOUSTILLAC, JE-

STEAM ENGINE APPLICATION FILED DEC. 19, 1902.

- K0 MODEL.

Weltmsses:

UNITED STATES P PATENT OFFICE.

HENRI G. COUSTILLAC, JR., OF BRADDOOK, PENNSYLVANIA.

STEAM- ENGINE.'

SPECIFICATION forming part of Letters PatentNo. 724,816, dated April '7, 1903. Application filed December 19, 1902 Serial releases. (No model.)

To all whom it may concern:

Be it known thatI, HENRI G. OoUsTILLAc, J r., a citizen of the United States of America, residing at Braddock, in the county of Allegheny and State'of Pennsylvania, have invented certain new'andvuseful Improvements in Steam-Engines, of which the following is a specification, reference being bad therein to the accompanying drawings.

This invention relates to'certain new and useful improvements in steam-engines, and has for its main object to simplify the construction and provide a cheap, simple, and effective engine with novel valve mechanism and few parts to become out of order.

A further object of the invention is to construct an engine with a slide-valve which is" actuated to shift the same,fso as to alternately admit steam to opposite ends of the cylinder by the engagement of th'epistonwith' pins carried by the 'slide valve, dispensing with the connecting-rod with the slide-valve.

With the above and other objects-in'view the invention resides in' the novel construction, combination, and arrangements of parts to be hereinafter morespecifically described and then particularly pointed out inthe ap-- pended claims, and in describing the invention in detail reference will be had to the accompanying drawings, forming a part of this specification, and wherein like numerals of reference will be employed to indicate like parts throughout the different views, in which n V Figure 1 is a detail perspective view of an enginecylinder and the valvecasing constructed in accordance with my'invention. Fig. 2 isa central longitudinal sectional view of the same. Fig. 3 is a'transverse vertical sectional view taken on the line 3 3 of Fig. 2. Fig. 4 is a detached detail perspective view of the slide-valve.

In the drawings, 1 indicates the cylinder; 2 3, the heads thereof; 4:, the piston, and 5 the piston-rod, working through a stuffingbox of approved form in the head 3. One

wall of the cylinder is provided adjacent to the heads 2 3 with'ports 6 7, which receive pinsS and 9, carried by the slide-valve, said pins projecting some distance through said slots or ports, whereby they will be engaged by the piston 4 in its reciprocation to actuate the valve. This slide-valve, which is cylindrical in form, embodies the hollow body por- 'tion 10 and solid ends 11 and 12, respectively, forming the valves to open and close ports 7 and 8. I The valve ends 11 and 12 carry the pins 8iand9, and the hollow body portion is provided with a cut-away portion 14 in its underneath side, wherebythe steam from the port 15, communicating with the inlet-pipe 16, may enter the said hollow body of the valve. The hollow body portion of the valve is provided in its upper face near each solid valve end with ports 17 18, respectively, whereby the steam is permitted to pass from the hollow body of the slide-valve into the ports 6 and 7 andinto the respective ends of the cylinder 1. By rnaking the valve-body cylindrical itwill be noted that packing-rings may readily be placed thereon in event of the body becoming worn from-use. This valve is insertedinto the valve-casing 19 through an opening in thehead 2 of the cylinder and this opening then closed by a stuffing-box 20, threaded into the same. A rod extends through this stuifing-box and connects with the valve 11, said rod carrying an open link 21 on its outer end to receive the end of the reversing-lever 22, that'is pivoted to a bracket 23, connected to the head 3 and having a slotted arm 24 to receive the upper or outer end of the lever. The valve-casing 19 is provided with ports 25 and 26, communicating with the exhaust 27 and alternately communicating with the ports 6 and 7.

In operation, when steam is admitted through the hollow valve-body and passes through port 18 and through port 7 into thefront end of the cylinder, the piston is forced toward the other end of the cylinder and as it approaches the end of its travel engages with pin 8 and shifts the valve, so as to cause the valve end 12 to close port 7 and the valve end 11 to be movedover, so as to open port 6, the steam in front of the cylinder-piston now exhausting through port 7, port 26, and exhaust 27 and live steam being admitted, through port 17, poft 6, into" the rear of the piston to propel the same forwardly. To reverse the engine, the valve is forced ,in the opposite direction by forcing link 21 inwardly,so that steam will first be admitted to valve become worn, it will be noted that packing-rings may readily be placed upon the cylindrical valve-body, the latter being readily removable from the valve-casing by removing threaded stuffing-box 21.

While I have herein shown and described the invention in detail, yet it will be evident that in the practice of the invention various slight changes may be made in the details of construction without departing from the general spirit of the invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a steam-engine, the combination with the cylinder and piston working therein, of inlet-ports in the wall of the cylinder adjacent the heads thereof, a cylindrical slidevalve embodying a hollow intermediate portion and solid valve ends, pins carried by said valve ends and extending into the ports in the cylinder-wall to be engaged by the piston,

and exhaust-ports in the casing of the slidevalve, substantially as described.

2. In a steam-engine the combination with a cylinder provided with elongated ports in one wall, and the piston working in the cylinder, of a valve-slide having a hollow cylindrical body portion, exhaust-ports in the valve-slide casing in alinement with the ports of the cylinder, said valve-slide being formed on one side adjacent each end with an opening and a central opening on the opposite side, solid ends arranged in the ends of the slide-valve,'and pins projecting through the body portion of the valve and engaging the ends thereof, substantially as described.

In testimony whereof I afiix my signature in the presence of two witnesses.

HENRI G. COUSTILLAC, JR.

Witnesses:

H. O. EVERT, A. M. WILSON. 

